Re: [Emc-users] Machine Vision?

2014-08-19 Thread Mark Wendt
On Mon, Aug 18, 2014 at 4:04 PM, Viesturs Lācis viesturs.la...@gmail.com wrote: 2014-08-18 22:47 GMT+03:00 Marius Liebenberg mar...@mastercut.co.za: Will you be willing to share the script as it could be useful for a pick and place machine that I am looking at doing. I have 2 files - one

Re: [Emc-users] OT: 5axis Workpiece Offset Compensation (in Sinumerik and LinuxCNC)?

2014-08-19 Thread Florian Rist
Hi Stuart, thanks for your comment. Do all your programming in reference to the XYZ0 you choose to make setup and multiple ops the easiest possible. Then use G54-G59 to set the zero coordinate offset from machine zero. This will work for 3, 4 and 5 axis programming. Hmm. Lets assume a

Re: [Emc-users] OT: 5axis Workpiece Offset Compensation (in Sinumerik and LinuxCNC)?

2014-08-19 Thread andy pugh
On 19 August 2014 14:27, Florian Rist fr...@fs.tum.de wrote: Now I mount the cube on the machine, after touching off it turns out that its 0.1 mm off in XYZ and turned and tilted by 0.1°. How to compensate this misalignment? My first guess would be to touch-off the B axis of your coordinate

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Todd Zuercher
This is what we are trying now. And it isn't quite working. To get the pockets clean pressures on the air curtain have to be so high that we have to have roller hold downs on the pieces to keep them from flying off the table. It also requires a huge amount of air to cover a 5ft wide

Re: [Emc-users] OT: 5axis Workpiece Offset Compensation (in Sinumerik and LinuxCNC)?

2014-08-19 Thread Stuart Stevenson
Florian, I believe Andy is correct. With your kins description you should be able to put the .1 offset in the A and B axis registers and correct the machine to position the block in alignment with the X and Y axes. thanks Stuart On Tue, Aug 19, 2014 at 8:47 AM, andy pugh bodge...@gmail.com

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Todd Zuercher
This sounds like the most promising idea. Yes there is vacuum for dust collection. - Original Message - From: Gregg Eshelman g_ala...@yahoo.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Monday, August 18, 2014 8:22:49 PM Subject: Re: [Emc-users]

Re: [Emc-users] Machine Vision?

2014-08-19 Thread andy pugh
On 19 August 2014 15:02, Todd Zuercher zuerc...@embarqmail.com wrote: This is what we are trying now. And it isn't quite working. To get the pockets clean pressures on the air curtain have to be so high that we have to have roller hold downs on the pieces to keep them

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Todd Zuercher
The conveyor is slow. I thought of multiple jets (and this might still be the best way) my only problem is that would be an awful lot of jets and the solenoids to actuate them to cover the conveyor width. I think one or a small number of mobile jets will be best. calculating the delay

Re: [Emc-users] Machine Vision?

2014-08-19 Thread andy pugh
On 19 August 2014 15:35, Todd Zuercher zuerc...@embarqmail.com wrote: The problem of multiple simultaneous pockets to be cleaned, I may be best addressed by telling the humans loading the conveyor to avoid it. Why not give the humans a vacuum nozzle? -- atp If you can't

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Dave Cole
On 8/19/2014 10:38 AM, andy pugh wrote: On 19 August 2014 15:35, Todd Zuercher zuerc...@embarqmail.com wrote: The problem of multiple simultaneous pockets to be cleaned, I may be best addressed by telling the humans loading the conveyor to avoid it. Why not give the

Re: [Emc-users] OT: 5axis Workpiece Offset Compensation (in Sinumerik and LinuxCNC)?

2014-08-19 Thread Florian Rist
Hi Andy and Stuart thanks for you messages. Now I mount the cube on the machine, after touching off it turns out that its 0.1 mm off in XYZ and turned and tilted by 0.1°. How to compensate this misalignment? My first guess would be to touch-off the B axis of your coordinate system to 0.1

Re: [Emc-users] OT: 5axis Workpiece Offset Compensation (in Sinumerik and LinuxCNC)?

2014-08-19 Thread andy pugh
On 19 August 2014 17:17, Florian Rist fr...@fs.tum.de wrote: I think I'm somewhat misunderstanding all the 5axis positioning in milling. For example I always wonder why the xyz workpiece coordinates of the tool tip do not change when I rotate and/or tilt the table. In my understanding I'm

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Marcus Bowman
On 18 Aug 2014, at 19:42, David Armstrong wrote: a vacuum would be far better and safer , instead of blowing potential chips into someones eyes etc no matter how good you are at trying to keep small debris in check , particles always get through . I agree. I have seen several very nice

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Marcus Bowman
On 19 Aug 2014, at 01:14, Gregg Eshelman wrote: On 8/18/2014 11:46 AM, Todd Zuercher wrote: I've had a problem proposed to me. Any ideas or suggestions? A series of randomly sized wooden pieces (uniform thickness) placed randomly on a slow conveyor. Each piece has 1 to 4 small pockets

Re: [Emc-users] Machine Vision?

2014-08-19 Thread Gregg Eshelman
On 8/19/2014 8:35 AM, Todd Zuercher wrote: The conveyor is slow. I thought of multiple jets (and this might still be the best way) my only problem is that would be an awful lot of jets and the solenoids to actuate them to cover the conveyor width. I think one or a small number of mobile

Re: [Emc-users] Machine Vision?

2014-08-19 Thread RogerN
-Original Message- From: Todd Zuercher Sent: Monday, August 18, 2014 12:46 PM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] Machine Vision? I've had a problem proposed to me. Any ideas or suggestions? A series of randomly sized wooden pieces (uniform thickness) placed

Re: [Emc-users] Machine Vision?

2014-08-19 Thread dave
On Mon, 2014-08-18 at 13:46 -0400, Todd Zuercher wrote: I've had a problem proposed to me. Any ideas or suggestions? A series of randomly sized wooden pieces (uniform thickness) placed randomly on a slow conveyor. Each piece has 1 to 4 small pockets milled in them. I would like to